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EP 4 179 638 A1

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(43) Date of publication: 17.05.2023 Bulletin 2023/20 (21) Application number: 21742899.4 (22) Date of filing: 09.07.2021

(51) International Patent Classification (IPC):  H04B 7/06(2006.01) H04B 7/0456(2017.01) (52) Cooperative Patent Classification (CPC): H04B 7/0626; H04B 7/063; H04B 7/0632; H04B 7/0639; H04B 7/0658; H04B 7/0478; H04B 7/0486 (86) International application number: PCT/IB2021/056202 (87) International publication number: WO 2022/009178 (13.01.2022 Gazette 2022/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 10.07.2020 US 202063050550 P (71) Applicant: Telefonaktiebolaget LM Ericsson (publ) 164 83 Stockholm (SE)

(72) Inventors: MURUGANATHAN, Siva Stittsville, Ontario K2S 0R3 (CA) ATHLEY, Fredrik 429 30 Kullavik (SE) FRENNE, Mattias 754 43 Uppsala (SE) GAO, Shiwei Nepean, Ontario K2J 0H5 (CA) MÄÄTTÄNEN, Helka-Liina 00510 Helsinki (FI) ZHANG, Xinlin 417 55 Göteborg (SE) (74) Representative: Laqua, Bernd Christian Kurt  Wuesthoff & Wuesthoff Patentanwälte PartG mbB Schweigerstraße 2 81541 München 81541 München (DE)